On 11/15/21 15:20, Pádraig Brady wrote:
I also have access to a macOS system, so I'll also test out if there are ways to use SEEK_DATA there.
Could you try the latest savannah Git instead? I installed something into Gnulib that I hope lets coreutils use SEEK_DATA on macOS as before. The Gnulib workaround operates on macOS only, and requires an lseek+SEEK_HOLE and an lseek+SEEK_DATA where Linux, FreeBSD etc. need only lseek+SEEK_DATA, but that's good enough I would think to copy holes efficiently on macOS.
I plan to send another email about this shortly.
